Derale Performance is a division of CP Auto Products, Inc., a third generation family-owned business that has been a California corporation since 1946 and a charter member of the original Speed Equipment Manufacture Association, also known simply as SEMA, established in 1963 The basic principles that our founder Sam Longo established and practiced throughout his notable career are the principles that drive Derale Performance today. Our passion to build the highest quality products is evident throughout our website - where you will find the most complete performance cooling line in the industry. We manufacture many products in-house; and source as many raw materials and components through US-based companies as possible. "Made in USA" is our promise to support quality and help return America to the forefront of manufacturing technology